Flour purifier, aspirator, and bleacher.



PATENTED PEB.'12, 1907f s. T. WILSON. I FLOUR PURIPIBR, ASPIRATOR, AND BLEAGHER.

APPLICATION FILED IEB. 1. 1906.

vw-wl/coz 5612774161 .7, W/swv UNITED STATES PATENT OFFICE.

i SAMUEL'T. WILSON, or CHARLESTON, WEST VIRGINIAl- FLOUR PURIFIER, ASIPIRATOR, AND BLEACHER- Iva 843,783.

' Specification of Letters latent.

Patented Feb. 12, 1907.

' Application filed February 1; 1906. Serial No. 299,011.

To all whom it may concern: Y Be it known that I, SAMUEL T. WI'LsON, a

citizen of the-United States, residing at Charleston, in the county of Kanawha' and ,State of West Virginia, have invented certain new and useful Im rovements inFlour Purifiers, Aspirators, an Bleachers; and I do declare the following to be a full, clear, and

exact description of the invention, such as will enable others skilled in the art to'which it appertains to make alrd use the same.

My invention relates to improvements in apparatus for treating flour, and consists in the novel construction, combination, and arrangement of devices hereinafter described and claimed.

v The object of theinvention is to provide a I machine or a paratus which will effectively remove all co oring-matter and obj ectionableodors from the flour and at the same time thoroughly dry and bleach it. y

The above and other objects, whichwill appearas the nature of the invention is better understood, are accomplished by means of the construction illustrated in the accompanying drawings, in which i Figure 1 is a vertical sectional view through a flour. purifier, aspirator, and

tically in a suitable building orother support and is in communication at its upper end with a horizontally-disposed se arator-casing 2. The leg or chute 1 is preterably'of rectangular form in cross-section, as seen in Fig. 3, and in practice should be at least twenty-four feet in height. At its bottom is arfi'anged a suitable discharge valve or gate 3,}from which the flour is removed after ithasbeen treated, and in its side walls, adjacent to its bottom,are formed air-inlet openings 4, which are partially closed by downwardly or inwardly inclined overlap ing slats 5, which permit ofthe entrance 0 air and prevent thedischarge of flour between them. I

The flour is introduced into-the upper portion of the leg or chute 1 through an inletthe latter leads a suction-pipe 11. has its opposite end in communication with 1 an exhaust "blower or fan 12, which may -be of any desired form and construction and from 5 the casing of which leads a discharge-pipe 13, which discharges the dust from the flour into ets 15.

chute 6, which has a suitable closure, as shown'in Fig. 2, and as it falls through the log or chute it is caused to take a zigzag downwardly and inwardlyinclined distributi-ng or deflector boards 8, which are prefer-- ably covered with a polished surface'of metal course and tospread out into a thinsheet by or the like 9. These deflectors 8' are-.ar- V ranged upon the opposing side walls of the leg orchutef 1, as clearly shown'in Fig. 2 of the drawings. The'leg or chute 1 has its upper end connected by an elbow 10 to one end of the separator, and from the opposite end of a suitable dust-collector 14, which latter may also be of any desired form and construction. The separator-casing 2 has arranged in its bottom a series of substantially V-shapedsettling pockets or chambers 15, from the contracted lower ends of which lead pipes 16,- which converge toward each other and unite in a Y-coupling at 17. From the latter eX- tends an inclined pipe or conductor 18, which is adapted to return the good st ockwhich falls into the'pockets 15 into the leg or chutel, as

shown at19. In the pipe 18 isprovided a" swinging gravity-seated valve 20, whichpermits the flour to pass downwardly beneath it, but prevents the assage of air upwardly through the pipe 18 om the leg 1 to the pock- The currents of air through the sepa rator-casing 2 are controlled and. regulated by two-series of valves21 22, the former being mounted between the chambers 15 at Said ,pipe

their upper ends and the latter being mounted upon the top of the casing 2 between the valves21- and at the ends thereof, as clearly shown in Fig. 1. These valves 21 22 are mounted to swing upon shafts which project through the casing and have adjusting means upon their outer ends, as shown in Fig. 2, so

sition to vary ends or edges. If desired, two or more grades of stock'may be treated in the same machine by arrangin the legs or chutes 1 in 'arallel relation an employing the same ex auster 12 and dustcollector 13, as .will be readily understood. I

that they may be retained in any angular 0- the space between their ee I millsiin manufacturing towns and'cities' .It

' fmattersuch as grease, 'dirt, fiber, and the like-left on the wheat-grain from improper scouring, also the trouble from coal-smoke 1n will also: remove all odors suc li as garlic, smut, and -must-and it will age] the flour by 1 drying it in the air-currents, thereby making 11 2- It also eflectively bleaches the flour, because it perfectly safe, to export to' warm climates.

it subjects everytlparticle ofv the same to the air-currents. c

' I l Various changes in'the-form, proportion, .20

and the minor details of construction may be resorted to without'departing from the printers Patent, is

--ciplejo'r sacrificing any of the advantages of the {invention asjdefined by. the appended claim. 4- Having thus'described my invention,what I claim as new, and desire to secure by Letlhe'herein-described flour purifier aspirator and bleacher, comprising a vertical chute having reversely-disposed deflectors in opposite sides and'outwardly and inwardly in-c clinezl air-intakes near its lowerend, a valved feed-spout communicating with said chute nearthe upper end thereof and feeding flour theretofa separator connected to and o municating with the. upper-end of said chute, said separator having pockets in its under side, baffle-valves extending upwardly from the division-walls of said pockets, and down- Wardly-extending baffle-valvesin its upper side mterrne-rliate the first named bafiievalves, an inclined pipe discharging into said chute at a point between the upper and lower ends thereof, said pipe communicating at its upper ends with the pockets and having a:

gravity-acting valve near its lower end, and a fan-blower to crea'tean exhaust-current of air upwardly through the chute and through the separator, over the ockets of the latter.

. In testimony whereo I have hereunto set my hand in presence of two subscribing witnesses. r

SAMUEL T, WILSON.

Witnesses Y D. F, HOSTETLER, 

